Brief introduction :
the LGB high voltage dry-type current transformer produced by BEIJING NOBLEWELL ELE-TECH CO., LTD is different from other similar products in CHINA and abroad. With innovative deisgn , the products have ni oil , no ceramic and no gas . the products utilize patented structure with silion rubber skirts as the outer insulation.our LGB dry-type current transformer can be used for electrical metering and for protection application and it can be used both for 50HZor 60 HZ. This product can be installed bothe indoor and outdoor.
Type :
LGB-1
L:CT,Current Transformer
G:dry type,no filling
B:with protection winding
1:rated voltage,Kv
Normative references : IEC60044-1<Current trandformer>
Advantages :
1. Dry – type insulation.
2. No oilfilling , no gas filling , no ceramic
3. antipollution
4. easy operation and maintenance.
Service conditions
Ambient air temperature : - 50c - +50c
The altitude: ≤ 1000m, if higher , amend according to IEC 60044
The creepage ratio: 20mm/KV,25mm/KV or 31mmKV
Technical indexes:
Rated voltahe:33kv, 52kv,72.5kv ,123kv ,145kv ,170kv,245kv
Partial discharge : ≤5pc
Dielectric dissipation factor : ≤0.004
Ith ; 50KA,Idyn ,125 kA
Rated primary current : ≤ 3000A
Rated secondary current:5A or 1A
Rated output capacity:5-60VA
Accuracy limit factor :5,10,15,20,30,40,50.
Accuracy classes for measuring core: 0.2,0.2s,0.5,0.5s
Accuracy classes for protective core :5P,10P,5PR,10PR,TPY
All parameters are in accordance with IEC 60044-1<current transformer>
